/*
 * Copyright (C) 2000-2008 Jens Nixdorf and various contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies of the Software, its documentation and marketing & publicity
 * materials, and acknowledgment shall be given in the documentation, materials
 * and software packages that this Software was used.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.mopore.jat.gui;

import java.awt.Color;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.BorderFactory;
import javax.swing.JTextField;
import javax.swing.border.Border;

public class IntegerTextField extends JTextField {
	
	private final Border defaultBorder;
	
	private final Border errorBorder;
	
	private Integer integerValue;
	
	private boolean inputValid;
	
	
	public IntegerTextField(){
		
		super();
		inputValid = true;
		integerValue = null;
		defaultBorder = getBorder();
		errorBorder = BorderFactory.createLineBorder( Color.RED );
		addKeyListener( new KeyAdapter()
			{
				@Override
				public void keyReleased( KeyEvent event ) {
					
					Border border;
					final JTextField textField = IntegerTextField.this;
					String text = textField.getText();
					
					boolean emptyText = ( text.length() == 0 );
					if ( emptyText ){
						border = defaultBorder;
						integerValue = null;
						inputValid = true;
					}
					else {
						try {
							integerValue = Integer.parseInt( text );
							border = defaultBorder;
							inputValid = true;
						} catch ( Exception exception ) {
							integerValue = null;
							border = errorBorder;
							inputValid = false;
						}
					}
					textField.setBorder(border);
				}
			}
		);
	}

	public IntegerTextField( String text ) {
		this();
		setText( text );
	}
	
	
	@Override
	public String getText() {
		String text = super.getText();
		text = text.trim();
		return text;
	}
	
	
	public Integer getIntegerValue() {
		return integerValue;
	}
	
	public void setIntegerValue( Integer value ) {
		setText( value.toString() );
		this.inputValid = true;
		this.integerValue = value;
	}
	
	
	public boolean isInputValid(){
		return inputValid;
	}

}
